What if there were a thousand flys in the cabin all buzzing about and flying continuously?
Would they increase the weight of the aircraft? 
What if there were a thousand flys in the cabin all buzzing about and flying continuously?
Would they increase the weight of the aircraft?
“Would they increase the weight of the aircraft?”
No, and the turbulence from the airflow created to displace
their weight inside the cabin would be easily corrected by
a slight trim correction on the ailerons. However this is
not recommended if the aircraft is flying to close to
the speed of sound. Flys flying forward may break the
sound barrier.
Yes, and if the cabin were filled with helium it would decrease the weight of the aircraft.
And everyone would sound like Donald Duck.